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A two-liter sample of mineral water was evaporated to a small volume, following which the potassium fon was precipitated with excess sodium tetraphenylboron: K NaB(CHs)a → KB(CHs)4 nv The precipitate was filtered, washed and redissolved in acetone. The analysis was completed by a Mohr titration that required 43.85-mL of 0.03941M AGNO,: KB(C,Hs)4 9 + Ag → AgB(CHs)4 09 + K* Calculate the potassium ion concentration (parts per million) of the water sample. Molar Mass: K = 39.10

A two-liter sample of mineral water was evaporated to a small volume, following which the potassium fon was precipitated with excess sodium tetraphenylboron: K NaB(CHs)a → KB(CHs)4 nv The precipitate was filtered, washed and redissolved in acetone. The analysis was completed by a Mohr titration that required 43.85-mL of 0.03941M AGNO,: KB(C,Hs)4 9 + Ag → AgB(CHs)4 09 + K* Calculate the potassium ion concentration (parts per million) of the water sample. Molar Mass: K = 39.10

Chemistry: Principles and Practice
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter14: Chemical Equilibrium
Section: Chapter Questions
Problem 14.98QE
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Answer provided: 33.8-ppm K^+1 Please show your complete solution and write your answer clearly and readable. Thank you.
Transcribed Image Text:Answer provided: 33.8-ppm K^+1 Please show your complete solution and write your answer clearly and readable. Thank you.
A two-liter sample of mineral water was evaporated to a small volume, following which the potassium ion was precipitated with excess sodium tetraphenylboron: K+ NaB(C,Hs)4 → KB(CHs)4 ) The precipitate was filtered, washed and redissolved in acetone. The analysis was completed by a Mohr titration that required 43.85-mL of 0.03941M AGNO3: KB(C,Hs)4 19 + Ag → AgB(CHs)« co) + K** Calculate the potassium ion concentration (parts per million) of the water sample. Molar Mass: K = 39.10
Transcribed Image Text:A two-liter sample of mineral water was evaporated to a small volume, following which the potassium ion was precipitated with excess sodium tetraphenylboron: K+ NaB(C,Hs)4 → KB(CHs)4 ) The precipitate was filtered, washed and redissolved in acetone. The analysis was completed by a Mohr titration that required 43.85-mL of 0.03941M AGNO3: KB(C,Hs)4 19 + Ag → AgB(CHs)« co) + K** Calculate the potassium ion concentration (parts per million) of the water sample. Molar Mass: K = 39.10
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